Khalifa, Mohamed A. E.; Zayed, Ezzat M.; Mohamed, Mona H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 6, p. 552 - 554
Khalifa, Mohamed A. E.; Zayed, Ezzat M.; Mohamed, Mona H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 6, p. 552 - 554